<script setup>
import { Edit, Delete } from "@element-plus/icons-vue";
import { ref } from "vue";
const categorys = ref([
  // {
  //     "id": 3,
  //     "categoryName": "美食",
  //     "categoryAlias": "my",
  //     "createTime": "2023-09-02 12:06:59",
  //     "updateTime": "2023-09-02 12:06:59"
  // },
  // {
  //     "id": 4,
  //     "categoryName": "娱乐",
  //     "categoryAlias": "yl",
  //     "createTime": "2023-09-02 12:08:16",
  //     "updateTime": "2023-09-02 12:08:16"
  // },
  // {
  //     "id": 5,
  //     "categoryName": "军事",
  //     "categoryAlias": "js",
  //     "createTime": "2023-09-02 12:08:33",
  //     "updateTime": "2023-09-02 12:08:33"
  // }
]);

//查询全部文章分类信息，声明一个异步请求
import { articleCategoryListService, articleCategoryAddService, articleCategoryUpdateService,articleCategoryDeleteService } from "@/api/article.js";
import { ElMessage,ElMessageBox } from "element-plus";
const articleCategoryList = async () => {
  const result = await articleCategoryListService();
  //赋值给categorys
  categorys.value = result.data;
};
//调用才能生效
articleCategoryList();


//控制添加分类弹窗
const dialogVisible = ref(false)

//添加分类数据模型
const categoryModel = ref({
  categoryName: '',
  categoryAlias: ''
})
//添加分类表单校验
const rules = {
  categoryName: [
    { required: true, message: '', trigger: 'blur' },
  ],
  categoryAlias: [
    { required: true, message: '请输入分类别名', trigger: 'blur' },
  ]
}

//调用接口,实现添加分类表单，声明一个异步请求
const addCategory = async () => {
  //调用接口
  const result = await articleCategoryAddService(categoryModel.value)
  ElMessage.success('添加成功')

  //调用查询所有的文章分类的函数
  articleCategoryList();
  //关闭弹窗
  dialogVisible.value = false
}

// 定义变量控制标题的展示
const title = ref('')

//展示编辑弹窗
const showDialog = (row) => {
  dialogVisible.value = true
  title.value = '编辑分类'
  //数据拷贝
  categoryModel.value.categoryName = row.categoryName
  categoryModel.value.categoryAlias = row.categoryAlias
  //扩展属性id,将来需要转递给后台,完成分类修改
  categoryModel.value.id = row.id
}

//编辑文章分类函数，声明一个异步请求
const updateCategory = async () => {
  //调用接口
  const result = await articleCategoryUpdateService(categoryModel.value)
  //提示
  ElMessage.success(result.message ? result.message : '编辑成功')
  //调用查询文章分类全部信息函数
  articleCategoryList();
  //关闭弹窗
  dialogVisible.value = false;
}

//清空模型数据函数,为了点击编辑按钮时数据回显到弹窗,再去点击添加按钮时数据会显示到添加弹窗
const clearData = () => {
  categoryModel.value.categoryName = '',
    categoryModel.value.categoryAlias = ''
}

//删除分类,声明一个异步请求
const deleteCategory = (row) => {
  //弹出一个确认框
  ElMessageBox.confirm(
    '您确认要删除该分类信息吗?',
    '温馨提示',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(async () => {
      //点击确认调用接口删除文章分类,声明一个异步请求
      const result = await articleCategoryDeleteService(row.id)
      ElMessage({
        type: 'success',
        message: '删除成功',
      })
      //调用查询文章分类全部信息函数,刷新列表
      articleCategoryList();
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '用户取消删除',
      })
    })
}

</script>

<template>
  <el-card class="page-container">
    <template #header>
      <div class="header">
        <span>文章分类</span>
        <div class="extra">
          <el-button type="primary" @click="dialogVisible = true; title = '添加分类'; clearData()">添加分类</el-button>
        </div>
      </div>
    </template>
    <el-table :data="categorys" style="width: 100%">
      <el-table-column label="序号" width="100" type="index"> </el-table-column>
      <el-table-column label="分类名称" prop="categoryName"></el-table-column>
      <el-table-column label="分类别名" prop="categoryAlias"></el-table-column>
      <el-table-column label="操作" width="100">
        <template #default="{ row }">
          <el-button :icon="Edit" circle plain type="primary" @click="showDialog(row)"></el-button>
          <el-button :icon="Delete" circle plain type="danger" @click="deleteCategory(row)"></el-button>
        </template>
      </el-table-column>
      <template #empty>
        <el-empty description="没有数据" />
      </template>
    </el-table>

    <!-- 添加分类弹窗 -->
    <el-dialog v-model="dialogVisible" :title="title" width="30%">
      <el-form :model="categoryModel" :rules="rules" label-width="100px" style="padding-right: 30px">
        <el-form-item label="分类名称" prop="categoryName">
          <el-input v-model="categoryModel.categoryName" minlength="1" maxlength="10"></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="categoryAlias">
          <el-input v-model="categoryModel.categoryAlias" minlength="1" maxlength="15"></el-input>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="dialogVisible = false">取消</el-button>
          <el-button type="primary" @click=" title == '添加分类' ? addCategory() : updateCategory()"> 确认 </el-button>
        </span>
      </template>
    </el-dialog>
  </el-card>
</template>

<style lang="scss" scoped>
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}
</style>